6 secrets retailers don't want you to know

If you're like most consumers searching for the lowest prices when shopping, you need to know retailers have some tricks up their sleeve for fighting back against their own rising costs.

It's no secret prices keep rising. According to Consensus Economics, publisher of Consensus Forecasts USA, inflation and overall prices will rise a modest 2 percent in 2012, but income will not rise accordingly. Gas prices are expected to rise, and we can all personally attest to food price hikes. Even the U.S. Postal Service raised its rates in January, and it might do so again soon. Prices for branded goods in high demand such as Levi's jeans and Nike sneakers already rose 5 percent to 15 percent during 2011 and will rise another 5 percent to 10 percent before 2012 is over, according to retail analysts.